Revert "Clang: Fix displaying template parameters"

Breaks for the built-in code model.

This reverts commit 69cf6b53.

Change-Id: I7d03f38e2b0bcf75f1d23d50fd323e24fd364f0d
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp

@@ -290,7 +290,7 @@ bool FunctionHintProposalWidget::updateAndCheck(const QString &prefix)
 
 void FunctionHintProposalWidget::updateContent()
 {
-    d->m_hintLabel->setText(d->m_model->text(d->m_currentHint).toHtmlEscaped());
+    d->m_hintLabel->setText(d->m_model->text(d->m_currentHint));
     d->m_numberLabel->setText(tr("%1 of %2").arg(d->m_currentHint + 1).arg(d->m_totalHints));
     updatePosition();
 }